Flora of North America species comparison

often with terminal tubers.

densely branching.

few–20.

erect, terete, 1–3 mm diam., smooth.

1, maroon to brown, apex acute.

basal, (1–)2–3;

auricles 2–5 mm, apex acute, membranous;

blade flat, 3–12 cm × 0.5–1 mm, margins entire.

basal 1–3, cauline 1–2;

auricles 0.5–2 mm, apex rounded, scarious;

blade green or maroon, compressed, 2–16 cm × 1–2 mm.

5–40-flowered, borne congested or branch internodes ca. as long as tepals, ssomewhat loose, 1–5 cm;

primary bract usually longer than inflorescence.

terminal panicles of 40–100(–200) heads, 4–16 cm, branches ascending to spreading;

primary bract erect to ascending;

heads 2–10-flowered, hemispheric to obpyramidal, 0.3–0.5 mm diam.

bracteoles 2;

tepals greenish, lanceolate, 3.3–4.4 mm;

outer and inner series nearly equal;

stamens 6, filaments 0.5–0.9 mm, anthers 0.1–0.2 mm;

style 0.1–0.2 mm.

tepals straw-colored, lanceolate, apex acuminate;

outer tepals (2.2–)2.6–2.9 mm;

inner tepals (1.8–)2.4–2.8;

stamens 3, anthers 2/3 to equal filament length.

tan or light brown, 1-locular to pseudo-3-locular, ellipsoid, (3.3–)3.8–4.7 × (1.1–)1.3–1.7 mm, nearly equal to tepals.

exserted, chestnut brown, 1-locular, narrowly obpyriform to narrowly ovoid, 2.4–2.9 mm, apex acute, valves separating at dehiscence.

tan, ellipsoid to lunate, (0.52–)5.5–0.65(–0.7) mm, not tailed.

ellipsoid, 0.3–0.5 mm, not tailed;

body clearly yellow-brown.

= 80.

= 40.